what is the between about respiration and photosynthesis?

Respiration is a complex chemical process.
It occurs all the time in living living, in which food is broken down to release the energy meeded by the body.
Food + oxygen -> carbon dioxide + water + energy

Green Plants make food by photosyuthesis.During the process, light energy(from sunlight)is changed to chemical energy(in the food produced).
carbon dioxide + water -> sugar(usually changed to starch) + oxygen